Resize an image
image cat scales images by pixel width/height or percentage locally in your browser, to meet avatar sizes, site artwork and platform upload requirements. Lock the aspect ratio for proportional scaling, process in batches — files are never uploaded.
Drag & drop or click to select filesJPG / PNG / WebP / HEIC supported, several at once
Output format
How to resize image
- 1Drop one or more images.
- 2Choose “percentage” or “exact width/height in pixels”; lock aspect ratio to keep proportions.
- 3Pick an output format.
- 4Click “Start” and download individually or as a ZIP.
Why use image cat's Resize Image?
- Local scaling: images stay on your device.
- Proportional or custom: lock the ratio to avoid distortion, or set exact width and height.
- High-quality resampling — sharp when scaling down.
Frequently asked questions
Yes. Drop several at once, set the target size, and image cat scales each with a ZIP download.
Plain upscaling only interpolates and won't add detail. For detail-preserving enlargement, watch for the upcoming AI upscaler.
Updated · image cat team
Sources, review and limits
Last verified
2026-06-17
Author
Image-Cat editorial team
Reviewer
Image-Cat tooling review
Primary sources
- Browser image decoding, Canvas and download APIs
- Common social, web and device image-size presets
- User-provided images processed locally
Compression and resizing can change quality, metadata and color. Keep originals and verify output before publishing or printing.